Vaporizer



(No Model.)

F. 0. HAWKES.

VAPORIZER.

No. 496,481. Patented May 2, 1893.

WITNESSES UNITED STATES PATENT OFFICE.

FRED. C. HAWKES, Old SPRINGFIELD, MASSACHUSETTS.

VAPORIZER.

SPECIFICATION forming part of Letters Patent No. 496,481, dated May 2,1893.

Application filed June '7. 1892. SerinlNo. 435,835. (No model.)

To all whom it may concern:

Be it known that I, FRED. C. HAWKES, a citizen of the United States,residing at Springfield, county of Hampden, and State of Massachusetts,have invented a new and useful Imfumery; and the invention consists inthe combination and construction as hereinafter described and moreparticularly pointed out in the claims.

My invention is fully illustrated in the accompanying drawings, inWhich- Figure I is a complete side elevation; Fig.

II, a top plan View, and Fig. III, a vertical section upon the dottedline 00 a: of Fig. II.

Referring to the drawings, 0 is a base in the form of a cup into whichis securely fitted a plug of absorbing material D, to project above itsseat in the cup, and leave a shoulder 12 around it formed by the rim ofthe cup. Openinginto the bottom of the cup 0, and integral therewith, isa reservoir H, in the shape of a spout having means for closing itsupper open end; in the drawings a stopper h is shown as a convenient wayof tightly sealing the mouth of the spout; as it may be ground into itsseat.

As a material for forming .the plug D, I prefer plaster, as from itsnature, it may be cast in a mold prolonged from the cup seat, so thatwhen the plaster sets and the mold is removed the plaster swelling whilesolidifying, firmly binds itself in the cup; it also will absorb to thepoint of saturation without parting with any of its contents bydripping.

When the stopper h is removed, the reservoir H can be filled with thevolatile fluid, as indicated by the broken lines in Fig. III, whichhaving free access to the plug D, is by the plug absorbed and drawn upto its portion above the cup 0, where it is given off by evaporation.

The device will rest securely upon the bottom of the cup as a base;butIalso provide it with a bracket piece i, by means of which it can besuspended from the side of a wall or other vertical surface.

When the device is suspended where clothing or other fabrics could comein contact with it, as for instance, in a clothes press, charged withcamphor, to drive away moths; the saturated plug might rub ofi upon anything in contact with it. To guard against this I fit over the plug D, aperforated cover P, which while preventing all direct contact with theplug, permits evaporation to go on freely and continuously. In thedrawings, a wire gauze is shown as being well adapted to that end. Alsoto have the evaporation within control, I fit over the cover P, a closecover S, which may be in the form, as shown, of a sleeve held in placeby friction upon the cover Pwherever it may be slid to, either toentirely expose the sides of the perforated cover P, or to entirelycover them and rest upon the shoulder b of the cup 0.

In Fig. I, the cover S is shown arranged to expose only a part of coverP, and so permit only a limited evaporation.

The cup 0, plug D, and the two covers may be of any corresponding shapein cross-section, though for convenience Iprefer a cylindrical form asillustrated.

Now having described my invention, whatI claim as new is 1. The improvedvaporizer comprising a combined fluid holding reservoir and plug seatingsocket with a base common to them both, the reservoir in the form ofatube lying along side of the socket with its lower end open to theinterior of the socket and with means for closing its upper end or mouthand asolid plug of absorbent material seated in the socket'to fill thesame, having one end projecting above the socket and its other endclosing the reservoir Within the socket.

2. In Vaporizers, the combination of a fluid holding reservoir and plugholding socket in one piece, the reservoir lying along the side of thesocket, communicating with its interior and, provided with a stopper forits mouth, a solid plug of plaster seated in the socket'to fill thesame, having one end projecting above the socket and the other endclosing the lower end of the reservoir-and a perforated cover fitted tothe portion of the plug projecting above the socket.

FRED. O. HAWKES. Witnesses:

R. F. HYDE, R. H. COLLINS.

